cire@dustbin.cisco.com (Eric B. Decker) (05/25/89)
Greetings, I recently obtained Carl Sassenrath's Guru's Guide #1 - Interrupts. In it I noticed a discussion of the IPL Vector Table which starts at 0xFFFFFFF2. This is where when auto vectoring in the interrupt sequence. When I read this I went digging through my 68K manuals to see if I could find where this is talked about. Couldn't find it. Scratch head. Carl clearly knows what he is talking about. This is weird. So I put a logic analyzer on my box and sure enough there it was. Now my question is this: Where is this behaviour of the 68K chips documented? Also is a similar thing done on 68K20 and the other beasties? Whoops a couple of questions. If you think this is of general interest than reply here otherwise just send me mail. thanks, -c -- cire|eric Eric B. Decker cisco Systems Menlo Park, California email: cire@cisco.com uSnail: 1360 Willow Rd., Menlo Park, CA 94025 Phone : (415) 326-1941